a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion | the technical aspects of doing something |
equipment consisting of miscellaneous articles needed for a particular operation or sport etc. | device consisting of a piece of machinery; has moving parts that perform some function |
wheelwork consisting of a connected set of rotating gears by which force is transmitted or motion or torque is changed | (philosophy) the philosophical theory that all phenomena can be explained in terms of physical or biological causes |
a mechanism for transmitting motion for some specific purpose (as the steering gear of a vehicle) | a natural object resembling a machine in structure or function |
| the atomic process that occurs during a chemical reaction |